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It is our position (following Plaice and Kropf [4]) that mathematics and software engineering do not provide a very good basis for understanding communities. These formalisms are necessarily influenced by a mechanical, atomistic outlook which sees collections as arbitrary assemblages of self-sufficient individuals communicating point to point in a vacuum. I suggest instead that ideas of Marshal...

Several studies have demonstrated that the sensitivity of a commercially available PCR test for the detection of Chlamydia trachomatis (Roche Diagnostics) is affected by the cellular quality of the endocervical swab specimens. The cellular adequacies of 1,633 female endocervical swab specimens were assessed and compared with the results of C. trachomatis detection obtained by ligase chain react...

The steady-state behaviour of isolated mammalian cytochrome c oxidase was examined by increasing the rate of reduction of cytochrome c. Under these conditions the enzyme's 605 (haem a), 655 (haem a3/CuB) and 830 (CuA) nm spectral features behaved as if they were at near equilibrium with cytochrome c (550 nm). This has implications for non-invasive tissue measurements using visible (550, 605 and...